Ventilator



May 6 1924.

L. C. M CARTNEY VENTILA'I'OR Filed June 30, 1922 3144mm .5- G- M al1'27.

Patented May 6, 1924i LESLIE c. MeoARTnnY, or LINCOLN. NEBRASKA."

VENTILATOR.

Applicationfi ledJune 30, 1922. Serial no. 571,905.

To all whom it may concern: I e

Be it known that I, LnsLIE Ci MoCAn'rNnr, aci'tizenof the United States,residing at Lincoln, in the county of- Lancaster and State of Nebraska,haveinvented'certain new and useful Improvements in Ventilators, ofwhich the following is a specification.

This invention. relates to a ventilator. and has as one of its principalobjects to provide a device of this character particularly adapted foruse in conjunction with barns, hog houses, chicken houses, or otherbuildings.

A further object of the invention isto provide a device which will beStOlIIlaPlOOIE and will be so constructed that birds may be preventedfrom nesting within the ventilator hood.

And the invention has as a still further object to provide a devicewherein the draft through the ventilator may be readily controlled.

Other and incidental objects will appear hereinafter.

In the drawing:

Figure 1 is a fragmentary plan view showing my improved device inconjunction with a portion of a roof,

Figure 2 is a longitudinal sectional view on the line 22 of Figure 1,looking in the direction of the arrows, and

Figure 3 is a transverse sectional view on the line 3-3 of Figure 1,looking in the direction of the arrows.

My invention is shown in one of its forms associated with a skylight. Iemploy an oblong frame which is preferably formed of suitable resilientsheet metal and comprises spaced parallel side bars 10 joined atcorresponding ends thereof by an integral end bar 11 from which extendsa center bar 12 lying medially between the side bars. Connecting theside bars at their opposite ends is a substantially semi-cylindricalventilating hood 13 having side flanges 1a soldered or other wisesecured to said bars. As best shown in Figure 2 of the drawing, theadjacent end of the center bar 12 is likewise soldered to the contiguousside flange of said hood, so that a rigid frame structure is thusprovided. As will now be appreciated, spaced window openings are definedat opposite sides of the center bar 12 and closing said openings arepanes 15 which are preferably formed of wire reinforced glass. Asparticularly brought out in Figure 2, the inner side margins of the sidebars 10 and end bar 11, as

well as the opposite longitudinal margins of the centerbar 12, are bentup to form channel members lfiwhile similar channel memhers li'.areforined from the adjacent side flange of the hood 13, these channelmembers receiving the, margins of the panes and serving to tirmlyconnectsaid panes with the frame as well as also providing tight jointsbetween-the frameand said panes. It will, of course; be understood thatin any instance where it is. desired to construct the device of lesswidth, the frame may. be made to accommodate a-single paneonly, the hood13 bein of course, correspondingly shortened.

Mount-ed" at the ends of the hood 13 are substantially semi-cylindricaldoors 18 which freely fit within the hood and swingingly supporting saiddoors are hinge rods 19 journaled through the sides of the hood. Thedoors are also preferably formed of suitable resilient sheet metal andmay be rolled about said hinge rod for connecting the doors therewith,the hinge rods extending trans versely of the hood substantially at theplane of the side flanges 14. Formed on the hood at its ends are, asbest shown in Figure 3, stop flanges 20 for limiting the doors in theirmovement to closed position and pivotally connected to the doors at theinner sides thereof are toggle members 21. Pivotally connecting thesemembers at their inner ends is a coupling 22 and extending from saidcoupling is an operating rod 23. Thus, by pulling downwardly upon thisrod, the

doors 18 may, as will be readily understood,.

be simultaneously opened while by shifting the rod upwardly, the doorsmay be closed. In this connection, it is to be observed that when thedoors are closed, the coupling 22 is shifted to a position above thepivotal center of the toggle members 21, the doors 18 flexing to permitthe upward movement of the coupling. Accordingly, the doors will be heldclosed by the weight of the ope ating rod 23.

In Figures 1 and 2 of the drawing, I have shown the device inconjunction with an ordinary shingle roof comprising a sheathing 24: towhich are nailed the shingles 25. An appropriate opening is made in thesheathing, when the frame of the device is positioned against thesheathing to register with said opening so that the shingles may bearranged to overlie the frame for securely connecting the device withthe roof as well as for excluding the elements. Thus, the device may .bereadily applied and when so applied, the operating rod 23 will hangdownwardly in convenient reach so that the doors 18 may be' opened andclosed has desired for regulating the draft through the ventilator.

Having'thus described the invention, what is claimed as new is: T

1. In a device of the character described, a frame, a hood carriedthereb open at its ends and provided with stop anges, doors movable toclosed position abutting said flanges, toggle members pivotallyconnected to the doors, a coupling pivotallyiconnecting said togglemembers, and an operating rod extending from said coupling whereby therod may be shifted for manipulating the doors, the coupling beingmovable from a position below to a position aboveitlie pivotal center ofsaid members wherebv'lthe rod will operate to hold the doors close 2. Adevice of the character described including ahood, doorsswinginglylconnected therewith, toggle members pivotally connected tosaid doors, and means pivotally connecting said toggle members andmovablefrom a position at one side to a position at the other side ofthe pivotal center of said members whereby the toggle members will holdthe doors closed.-

3. A device of the character described including ahood, doors swinginglyconnected at their lower marginswith the hood and movable upwardly andoutwardly away from each other to closed position, toggle memberspivotally connected to the doors at the inner sides thereof, a couplingpivotally connecting said members,and an operating rod attached to saidcoupling and operable to shift the coupling from a position below to aposition above the pivotal centers of said toggle members whereby thetoggle members will hold the doors closed.

' In testimony whereof I affix my signature.

LESLIE o. MoCARTNEY. a s.]

